Family and Early LifeEdit
Ylgar was the youngest son of the legendary Ysgramor, he also had an older brother, Yngol. Ylgar, as well as his brother and father, sailed to Tamriel fleeing civil war on Atmora. Along with other settlers, Ylgar and his family were inhabitants of Saarthal and were there during the elven raid, Night of Tears.  Ylgar is said to be among the three survivors. He, along with Ysgramor and his brother, fled back to Atmora.
After returning to Atmora, Ylgar was already known as a warrior possessed of an unwavering spirit that drove his singular prowess to overwhelming feats in war. 
Ylgar sought to avenge to his fallen brothers and sisters so joined the Five Hundred Companions, led by his father. He commissioned two ships for himself and his brother and became the captain of Darumzu. Yngol and Ylgar sailed out of the massive shipyards of Jylkurfyk, not knowing that this was the last time they would meet. 
During the voyage to Tamriel, fleet of the Five Hundred was hit by the Storm of Separation. Both of the brothers were separated from the rest of the crew. It was Ylgar and his crew who luckly avoided the hazards of the great storm and sailed out alive. 
Ylgar led crew of wise war-teacher Adrimk and his student, of whom most haven't had earned their names yet. No further records are found on what happened with Ylgar and his crew after they landed on the Hsaarik Head.
- The Elder Scrolls V: Skyrim (Mentioned only)